Closure structure



March 13, 1928. 1,662,361 J. E. CARLSON -ET AL CLOSURE STRUCTURE Filed Aug. 10. 1926 3 Sheets-Sheet 1 III) v Inventors a. 16 rlwow, l4. 6, 0270721070,

Attorney March 13, 1928.

J. E. CARLSON ET AL CLOSURE STRUCTURE Filed Aug. 10. 1926 3 Sheets-Sheet 2 March 13, 1928.

J. E. CARLSON ET AL CLOSURE STRUCTURE Filed Aug. 10. 1926 Inventors .Z'. $071807,

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3 Sheets-Sheet 5 IIIIIIIIIIIII Patented Mar. 13, 1928.

UNITED STATES JOHN E. oAnLsoN AND WALTER s. NORDMAN, or manner, INDIANA.

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Application filed August 10,1926, Serial No. 128,422.

coop and also as a closure for an opening,

in an animal enclosure or pen.

Our primary aim is to provide a structure of this kind wherein the closing element itself is swingably mounted and means is provided for operating it at a distant point.

For instance, where the device is used as a closure for a window opening in a cellar to which coal is usually placed, we propose to provide operating chains or the like extending into the interior of a room in proximity to the particular openings, whereby the closure may be placed in the opening and then closed, thus obviating the necessity of going into the cellarto manipulate the closure, and thereby avoiding contact with coal dust and dirt.

Of course, another object is to provide a structure of this kind comparatively simple in construction, such as to permit it to be easily installed, one which includes practical details arranged in a novel association, and

a device which is altogether efficient in ac complising the result itself.

Other features and advantages of the in vention will become apparent from the following description and drawings.

In the accompanying drawings forming a part ofthis application and in which like numerals are employed to designate like parts throughout the same Figure 1 is a view in sect-ion and elevation of a closure showing the same installed in a building wall,

Fig. 2 is a horizontal section taken approximately upon the plane ofthe line 2-2 of Fig. 1,

Fig. 3 is a central vertical section showing the internal construction more plainly,

Fig. t is a transverse vertical section thru one end portion of the structure, showing the latch mechanism plainly,

Fig. '5 is a view like Fig. 4, taken on a different line and approximately through the center of the structure,

'wardly to open position.

however, provided for automatically rocking Fig. 6 is a details, and

Fig. 7 is a perspective view of another one of the details.

Referring to the drawings in detail, it

perspective view of one of the will be seenthat the reference character 1 designates generally a substantially rectan- This casing is simply made, up of inner and outer walls 2 and?) congular casing.

nected together partly by pins 4, the pins being disposedslightly inwardly of the marginal edges of the wall. These walls or plates are provided at theircenterwith oppositely disposed rectangular openings hav ing inwardly struck flanges 5 formed around the margin thereof. Y s

Cooperating with the fiangesisa rectangular sleevefi forming a sinooth'surface opening to provide the desired entrance.

This entrance .is closed on one side by the closure proper, generally designated by the reference character 7. The closure comprises an inner plate 8, an outer plate 9, and a central glass window 10, the plates being secured to each other and the window being confined therebetween. g

The plates .are provided with slots disposed opposite each other to permit passage of light wliereby the closure may function as a. window; As shown inFig. 1, this closure is fastened as at 11 to a rock shaft 12 j ournaled for rotation in bearings formed in segmental boxings 13 at the ends of a special shield 14:. This shield is provided with'maia ginal attaching flanges 15 and 16 and it constitutes a housing for the shaft and connection of the closure. One. purpose of the housing is to prevent accumulation of dust and dirt on the parts, and to add to the general attractive appearance of the structure.

Carried by the rock shaft and shown plainly in Figs. 4 and 5, are crank arms 17 which are bowed somewhat and which are in turn connected to the bifurcated portion of counter-balancing weights 18. lVith this arrangement the weights normally move the crank armsdownwardly and rock the shaft 12 in a manner to lift the closure 7 up- Novel means is,

and retaining the closure in closed position. The means referred to comprises a novel latch 19 as shown in Fig. 6. This latch is f the form of a casting which is pivoted between its center at 20 in Fig. 3.

One end portion is bifurcated as indicated at 21. Also the opposite end is bifurcated and the furcations are somewhat longer. ()ne of the furcations, designated by the reference character 22 is constructed with an angularly disposed end portion terminating in an upwardly directed latch 24-. The portion 23 extends through a. slot 25 (see Fig. in the outer plate 3. This arrangement permits the latch 2 to be engaged with the bottom of the closure as shown plainly in Fig. 5, for holding the closure in closed position. By preference, complemental stampings 26 and 27 are formulated to provide an enclosure about this latch to prevent passage of dirt and dust.

It is obvious of course, that. the latch is countcr-balanced owing to the heavy end portion 21. A pin is fastened to this end portion between the furcations, and a pull chain 28 is connected with the pin and extends upwardly through a guide 29, and the interior of the casing structure.

A complemental chain 30 is connected with one of the aforesaid weights 18 as shown better in Fig. Both of these chains have finger rings 31 at their upper ends located in a wall box 1:32. This box located ata suitable point in the room and is provided with an appropriate sliding closure 33.

The device may be located in the wall ill as shown in Fig. 2 and the chains 28 and 30 will be extended up between the walls of the dwelling and the linger rings located in the wall boxes or a single box as shown. The cover plate will serve to hide the box so as to dispose it out of sight. The latch 2% is engaged with the swingable closure as represented in Fig. 5, and it it is desired to swing the closure to open position. it is only necessary to grasp the pull chain 2s and lift upwardly on the same. thus overbalancinn the weighted end of the latch it). and disengaging the latch 2i from the closure.

'lhc moment. that the latch is disengaged. the rock shalt 12 will swine lownwardly under the act ion of the weights 1h. thus moving the closure to open position. In order to close the same, it is necessary to pull upwardly on the other chain 30. thus lilting the weights and swinging the closure downwardly. As the closure moves in this direction, the gravity actuated latch will automatically engage the same and hold it closed in an obvious manner.

It is believed that the construction and advantages of the device will be clear tl'rom a careful consideratimi of the drawing and description. Therefore, a more lengthy description is thought ui'ineccssary.

lVhile the preferred embodiment of the invention has been shown and tlescrilicd. it is to be understood that minor changes coming within the lield of invention claimed may be resorted to it desired.

Having thus described our invention, what we claim as new is:--

1. In a. window closure of the class described, a casing ol hollow l'orm constl'llclcd to fit in a cellar window opcniu' said casin being" provided with an entrance opening, a closure for said entrance opening. an oscillatory rock shaft with which said closure is rigidly connected swinging motion. bearings on the casing" in which said rock shaft. is journaled i'or oscillation, a latch pivotally mounted in the easing for holding the closure in closed position. crank arms connected with said rock shaft and confined in said casing. and counter balanced weights connected with and depending from said cranlt arm. whereby when the latch is released the closurc will be automatically swung to open position through the action of the counn-rbalanccd weight.

In a cellar window construction of the class described. a hollow casing constructed to lit in a cellar window opening. said casing being provided with an entrance opening and having external bearings. a rock shaft mounted for oscillation insaid bearings. a closure rigidly connecting said rock shaft and swingable over said (llll'ill'ltt' opening, a shield over said hearing; and shaft for concealing said parts, crank arms connected to the rock shaft and confined within said casing. counter weights pivotally connected to and dependin; "from the cranl; arm. a body pivotally mounted in thc (Zir-llltf and including a latch coopcrablc with said closure for holding the closure in lo ed position, a pull chain connected with said body and adapted to extend to a distant point. and wall box with which the free end portion of the pull chain is adapted to be a.-=-- sociatcd.

In testimony whereof we aliix our signatures.

JOHN E. CARLSON. W'ALTER G. NORDMAN.

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